Richard Moore, general manager of the Rawcliffe Bridge factory, said: “Cepac has invested in our site since the acquisition and this latest phase represents the most significant investment at the site for many years.

“The improvements really secure the long-term future of Rawcliffe and underpin its continued growth and our ability to service our customers, in addition to continuing to provide increased employment opportunities for our excellent team.”

BOXING CLEVER: Cepac has increased its workforce at Rawcliffe from 75 to 125

Founded in 1999, Cepac is part of the international HSA Group.

In addition to the Rawcliffe plant, Cepac also has plants at Darlington, Doncaster and Rotherham.

The Rawcliffe site specialises in bespoke corrugated supply chain solutions, covering a wide range of sectors, with customers including Jaguar Land Rover, Ideal Boilers and Iceland Foods.

Ground was broken on the Rawcliffe site in early June.

Foundations are due to be laid this week, with steel work on the new buildings to follow.

Mr Moore said: “The spirit in the plant has been significantly buoyed by this announcement.

“The investment is absolutely key to our future strategic objectives.

“Under Cepac’s ownership the plant has thrived and we are all very excited about the future and our plans for continued expansion.”